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Finding the Fourth Proportional to 1,978, 2,967.16 and 610

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Solution

The fourth proportional to 1,978, 2,967.16 and 610 is: 915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978 : 2,967.16 = 610 : x
  2. Step 2: Convert to fraction form
    1,978/2,967.16 = 610/x
  3. Step 3: Cross multiply
    1,978x = 2,967.16 × 610
  4. Step 4: Simplify right side
    1,978x = 1,809,967.60
  5. Step 5: Solve for x
    x = 1,809,967.60/1,978
  6. Step 6: Final answer
    x = 915.05

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